试题与答案

超声波之所以能进行金属探伤,因为它能直接射入金属内部,不发生反射现象。( )

题型:判断题

题目:

超声波之所以能进行金属探伤,因为它能直接射入金属内部,不发生反射现象。( )

答案:

参考答案:

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题型:填空题

Mr. Read works in an office. He is very busy and has no time to have a good rest. Every evening, when he comes back from his office, he’s always tired and wants to go to bed early. But his wife often has a lot of interesting things to tell him after supper. She doesn’t stop talking until she 1.________________________, but it’s usually too late and Mr. Read has to get up in time in the morning.

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